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Electrical splice box sizing11/14/2023 Additionally, the J boxes are just connection points. ![]() The junction boxes are metal and sized at 4 x 2 1/8 deep. I have just finished a wiring project and due to lack of experience and skill, I think my layout caused two of my four main junction boxes to be overfilled. I have watched many videos on this but due to my not knowing electrical nomenclature, I'm having trouble understanding this. Search before posting please Related Subs Misc tips and tricks Becoming an apprentice? Useful certifications for electricians Trade Threads Posts that fail to meet above requirements will be removed. r/AskElectricians /r/askanelectrician /r/diy /r/homeowners /r/electrical. Suggesting the burning scrap wire to remove the insulation will result in a ban. NO DIY, SELF-HELP POSTS, OR QUESTIONS FROM NON PROFESSIONALS. Incorrect, unsafe, or hazardous information will result in a ban. This includes company names of contractors. Back it up with a code reference.ĭO NOT post any personal information. Rules Generalĭon't be a dick, and adhere to the reddiquette If you are looking for DIY or general help please visit /r/askelectricians Pre-Apprentices start here before posting Help your fellow Redditors crack the electrical code. Talk shop, show off pictures of your work, and ask code related questions. Reddit's International Electrical Worker CommunityĪka The Great Reddit Council of Electricians In this photo, have a piece of paper with your username and date written on it. ![]() To get verified, send a photo to the mods that has your certificate/seal/card. Users with have verified their qualifications with the Mods Then message the mods with the country you are from. Once there, click on their link to free access to the 2017 NEC ® edition of NFPA 70.To add your country's flag to your flair, you must select a title from the drop down menu. When transposing cable size into raceway size in 314.28(A)(1) and (A)(2), the minimum trade size raceway required for the number and size of conductors in the cable shall be used.įor complete code sections, refer to the actual NEC ® text at NFPA.ORG. The distance between raceway entries enclosing the same conductor shall not be less than six times the trade size of the larger raceway ( see dimension Z in the image). Each row shall be calculated individually, and the single row that provides the maximum distance shall be used.Įxception: Where a raceway or cable entry is in the wall of a box or conduit body opposite a removable cover, the distance from that wall to the cover shall be permitted to comply with the distance required for one wire per terminal in Table 312.6(A). This distance shall be increased for additional entries by the amount of the sum of the diameters of all other raceway entries in the same row on the same wall of the box. For angle pulls, U pulls or splices, the distance between each raceway entry inside the box or conduit body and the opposite wall of the box or conduit body shall not be less than six times the trade size of the largest raceway in a row ( see dimension X and Y in the image). Section 314.28(A)(2) provides the minimum required dimension for an enclosure containing an angle pull, U pull or even splices (see image). When installing large insulated conductors, care must be taken to ensure that the conductor insulation is not compromised during the wire pull because the box is too small. ![]() The rules apply to “insulated” conductors for a reason. When installing insulated conductors of 4 AWG or larger, the minimum dimensions of pull or junction boxes installed in a raceway or cable run must comply with 314.28(A)(1) through (A)(3).
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